This is a new Minecraft launcher that is currently in development. It is designed to be a modern, fast and efficient launcher. It is written in Rust. Aims to be a Reproducible Minecraft Workspace Manager. https://git.hydroroll.team/DropOut/atom?h=%40dropout%2Fdocs-v0.1.0-alpha.1 2026-02-15T08:34:35Z 2026-02-15T08:34:35Z Copilot 198982749+Copilot@users.noreply.github.com 2026-02-15T08:34:35Z urn:sha1:9c1dda2652f7abc2a562d6c1b513d5b6915167ad # Description MinGW linker fails on `resource.lib` because `tauri-build` generates MSVC-format resources. MinGW requires COFF format. This PR adds conditional resource compilation using `embed-resource` for GNU targets. ## Type of Change - [x] Bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) - [ ] Documentation update - [ ] UI/UX improvement - [ ] Performance improvement - [ ] Code refactoring (no functional changes) - [ ] Configuration change - [ ] Test addition or update ## LLM-Generated Code Disclosure - [x] This PR contains LLM-generated code, and I **provide** quality assurance - [ ] This PR contains LLM-generated code, and I **do not provide** quality assurance - [ ] This PR does not contain LLM-generated code ## Related Issues Fixes the Windows x86_64-pc-windows-gnu build failure in CI (Job ID: 63620685213) ## Changes Made ### Backend (Rust) - N/A ### Frontend (Svelte) - N/A ### Configuration - **src-tauri/Cargo.toml**: Added `embed-resource = "2.4"` as target-specific build dependency for `cfg(all(windows, target_env = "gnu"))` - **src-tauri/build.rs**: Added conditional resource compilation - calls `embed_resource::compile()` for MinGW, preserves `tauri_build::build()` for all targets - **src-tauri/icon.rc**: Created Windows resource file referencing `icons/icon.ico` **Key implementation**: ```rust fn main() { #[cfg(all(windows, target_env = "gnu"))] { embed_resource::compile("icon.rc", embed_resource::NONE); } tauri_build::build() } ``` **Impact**: MSVC builds unchanged, Linux/macOS unaffected (dependency not loaded), MinGW builds now generate COFF-compatible resources. ## Testing ### Test Environment - **OS**: Ubuntu 22.04 (Linux validation) - **DropOut Version**: 0.2.0-alpha.1 - **Minecraft Version Tested**: N/A (build-only fix) - **Mod Loader**: N/A ### Test Cases - [ ] Tested on Windows - [ ] Tested on macOS - [x] Tested on Linux - [ ] Tested with vanilla Minecraft - [ ] Tested with Fabric - [ ] Tested with Forge - [ ] Tested game launch - [ ] Tested authentication flow - [ ] Tested Java detection/download ### Steps to Test 1. Run `cargo check` on Linux (verified - passes) 2. CI validation pending: `semifold-ci.yaml` "Windows x86_64 (GNU)" job should complete without linker errors 3. Manual Windows MinGW build verification recommended ## Checklist ### Code Quality - [x] My code follows the project's style guidelines - [x] I have performed a self-review of my own code - [x] I have commented my code, particularly in hard-to-understand areas - [x] My changes generate no new warnings or errors ### Testing Verification - [x] I have tested my changes locally - [ ] I have added tests that prove my fix is effective or that my feature works - [x] New and existing unit tests pass locally with my changes - [x] I have tested on at least one target platform ### Documentation - [x] I have updated the documentation accordingly - [ ] I have updated the README if needed - [x] I have added/updated code comments where necessary ### Dependencies - [x] I have checked that no unnecessary dependencies were added - [x] All new dependencies are properly documented - [x] `Cargo.lock` and/or `pnpm-lock.yaml` are updated (if dependencies changed) ## Screenshots / Videos N/A - build configuration change only ## Additional Notes - Target-specific dependency prevents unnecessary bloat on non-Windows platforms - `embed-resource` generates COFF format compatible with `x86_64-w64-mingw32-gcc` - No runtime code changes - purely build-time fix ## Breaking Changes None. Fully backward compatible. --- **For Maintainers:** - [ ] Code review completed - [ ] CI checks passing - [ ] Ready to merge <!-- START COPILOT ORIGINAL PROMPT --> <details> <summary>Original prompt</summary> > ## Problem > > The Windows x86_64-pc-windows-gnu build is failing in the CI/CD pipeline with a linker error: > > ``` > error: linking with `x86_64-w64-mingw32-gcc` failed: exit code: 1 > note: D:\a\DropOut\DropOut\target\x86_64-pc-windows-gnu\release\build\dropout-d2b2a5095bbadd51\out\resource.lib: file not recognized: file format not recognized > ``` > > This occurs because `tauri-build` generates `resource.lib` in a format incompatible with the MinGW (GNU) toolchain. The file is likely being created in MSVC format instead of the COFF format required by MinGW. > > **Failing Job:** https://github.com/HydroRoll-Team/DropOut/actions (Job ID: 63620685213) > **Commit:** e6eb1bd0111d40b3b1fd39fafd583ce5dbf30f03 > **Target:** x86_64-pc-windows-gnu > > ## Solution > > Update the `build.rs` file to conditionally use `embed-resource` crate when building for the GNU toolchain, which properly generates MinGW-compatible resource files. > > ### Changes Required > > 1. **Update `src-tauri/Cargo.toml`**: Add `embed-resource` as a build dependency for Windows GNU targets > 2. **Update `src-tauri/build.rs`**: Implement conditional resource compilation: > - Use `embed-resource` for `x86_64-pc-windows-gnu` target > - Continue using default `tauri-build` for MSVC targets > > ### Implementation Details > > **src-tauri/Cargo.toml** - Add to `[build-dependencies]`: > ```toml > [build-dependencies] > tauri-build = { version = "2.0", features = [] } > embed-resource = "2.4" > ``` > > **src-tauri/build.rs** - Replace current content: > ```rust > fn main() { > // For MinGW targets, use embed-resource to generate proper COFF format > #[cfg(all(windows, target_env = "gnu"))] > { > embed_resource::compile("icon.rc", embed_resource::NONE); > } > > tauri_build::build() > } > ``` > > If `icon.rc` doesn't exist, create **src-tauri/icon.rc**: > ```rc > 1 ICON "icons/icon.ico" > ``` > > ### Testing > > After this fix: > - Windows MSVC builds should continue working as before > - Windows GNU (MinGW) builds should successfully link without the "file format not recognized" error > - The generated resource.lib will be in COFF format compatible with `x86_64-w64-mingw32-gcc` > > ### References > > - Tauri issue tracker (similar issues): https://github.com/tauri-apps/tauri/issues > - embed-resource crate: https://crates.io/crates/embed-resource > - MinGW resource compilation: https://sourceforge.net/p/mingw-w64/wiki2/windres/ > </details> <!-- START COPILOT CODING AGENT SUFFIX --> *This pull request was created from Copilot chat.* > <!-- START COPILOT CODING AGENT TIPS --> --- ✨ Let Copilot coding agent [set things up for you](https://github.com/HydroRoll-Team/DropOut/issues/new?title=✨+Set+up+Copilot+instructions&body=Configure%20instructions%20for%20this%20repository%20as%20documented%20in%20%5BBest%20practices%20for%20Copilot%20coding%20agent%20in%20your%20repository%5D%28https://gh.io/copilot-coding-agent-tips%29%2E%0A%0A%3COnboard%20this%20repo%3E&assignees=copilot) — coding agent works faster and does higher quality work when set up for your repo. --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: HsiangNianian <44714368+HsiangNianian@users.noreply.github.com>